System inside VM boots up correctly without anything set in Boot Order

piotrpierzchala

New Member
Jun 12, 2025
6
0
1
Hi!

I'm testing one thing on proxmox and just noticed that I haven't set anything in Boot Order - however, system inside VM still boots up correctly.

VM's .conf also shows empty boot: line.

I've tried to delete EFI Disk - no changes
I've tried to set and clean boot order - no changes

Is this expected?
 
Last edited:
Hi!

Can you share the specific VM config with the expected and actual behavior?

If there is no given boot config property, then the VM will fallback to the legacy boot order default, which is CD-ROMs, bootable hard disks (i.e. set with the deprecated bootdisk config property) and network devices. If boot is an empty string, then it will not mark any device as bootable.

efidisk0 and tmpstate0 cannot be set as bootable devices.